EP0493318A1 - Procédé de fabrication d'une composition métallique liquide-solide pour façonnage subséquent comme matériau à l'état thixotropique - Google Patents
Procédé de fabrication d'une composition métallique liquide-solide pour façonnage subséquent comme matériau à l'état thixotropique Download PDFInfo
- Publication number
- EP0493318A1 EP0493318A1 EP91810961A EP91810961A EP0493318A1 EP 0493318 A1 EP0493318 A1 EP 0493318A1 EP 91810961 A EP91810961 A EP 91810961A EP 91810961 A EP91810961 A EP 91810961A EP 0493318 A1 EP0493318 A1 EP 0493318A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mechanical vibrations
- liquid
- alloy
- temperature
- solid metal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 230000009974 thixotropic effect Effects 0.000 title claims abstract description 14
- 239000007787 solid Substances 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 title claims description 28
- 238000004519 manufacturing process Methods 0.000 title description 4
- 239000007769 metal material Substances 0.000 title 1
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 24
- 239000000956 alloy Substances 0.000 claims abstract description 24
- 229910001092 metal group alloy Inorganic materials 0.000 claims abstract description 13
- 239000013078 crystal Substances 0.000 claims abstract description 7
- 210000001787 dendrite Anatomy 0.000 claims abstract description 4
- 230000010355 oscillation Effects 0.000 claims description 7
- 238000009749 continuous casting Methods 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 238000005266 casting Methods 0.000 description 9
- 239000012071 phase Substances 0.000 description 9
- 239000000155 melt Substances 0.000 description 8
- 238000003756 stirring Methods 0.000 description 8
- 239000002002 slurry Substances 0.000 description 7
- 238000007711 solidification Methods 0.000 description 6
- 230000008023 solidification Effects 0.000 description 6
- 229910001338 liquidmetal Inorganic materials 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- QYEXBYZXHDUPRC-UHFFFAOYSA-N B#[Ti]#B Chemical compound B#[Ti]#B QYEXBYZXHDUPRC-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000007528 sand casting Methods 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000009210 therapy by ultrasound Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/12—Making non-ferrous alloys by processing in a semi-solid state, e.g. holding the alloy in the solid-liquid phase
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S164/00—Metal founding
- Y10S164/90—Rheo-casting
Definitions
- the invention relates to a method for producing a liquid-solid metal alloy phase for further processing as a material in the thixotropic state, wherein an alloy melt with a solidified portion of primary crystals is kept at a temperature between the solidus and liquidus temperature of the alloy and the primary crystals to individual degenerate dendrites or molded grains of substantially globulitic shape.
- the inventors have set themselves the goal of creating a method of the type mentioned at the outset with which a metal alloy phase with thixotropic properties can be produced with as few oxidic inclusions as possible, low porosity and uniform casting grain size and the treatment time of the alloy pulp can be kept as short as possible. that there is no significant coarsening of the grain.
- the process should be simple to carry out and inexpensive.
- the vibrations which are preferably in the ultrasonic frequency range between 18 and 45 kHz, cause in addition to the desired formation of fine, globulitic cast grains of uniform grain size, homogenization and degassing of the melt in the partially solidified melt.
- the mechanical vibrations in the alloy slurry can be generated in any way, for example via the mold by coupling a vibration generator to the mold frame.
- the oscillations are preferably generated via the oscillation surface of at least one oscillation generator immersed directly in the molten metal, the oscillation amplitude of the oscillation surface being between 5 and 100 microns, preferably between 20 and 60 microns.
- the mechanical vibrations can take place continuously or pulsating, the pulsing duration preferably setting the pulse duration between 20 ms and 10 s, in particular between 0.1 s and 1 s, and the ratio of the pulse duration of the mechanical vibrations to the pause duration between 0.1 and 1 lies.
- the method according to the invention can be used both in stationary mold casting processes such as mold casting and sand casting as well as in continuous processes such as vertical and horizontal, conventional and electromagnetic continuous casting and strip casting processes of all kinds.
- the power introduced into the melt via the mechanical vibrations is preferably 2 to 50 W / cm2 strand cross section, in particular 5 to 20 W / cm2 strand cross section.
- the vibration area of the vibration generator (s) is preferably 1 to 100%, in particular 10 to 60%, of the strand cross-sectional area.
- a piezoelectric vibration generator is advantageously used to generate the mechanical vibrations, since its amplitude can be set precisely regardless of its power and, moreover, larger amplitudes are possible than with magnetomechanical vibration generators.
- liquid-solid metal alloy phase produced by the process according to the invention is first cooled below the solidus temperature of the alloy - generally to room temperature.
- the structure with the thixotropic properties is "frozen".
- the thixotropic state of the alloy is restored by rapid heating again to a temperature in the range between solidus and liquidus temperature of the alloy.
- liquid-solid metal alloy phase with thixotropic properties can also be processed immediately after it has been produced, without prior solidification.
- the heat extraction is controlled in such a way that the minimum temperature of the slurry does not drop below the solidus temperature of the alloy. Instead of a solid strand, the liquid-solid metal alloy phase is drawn off and processed directly.
- alloy also includes the pure metals with production-related impurities, for example the different qualities of pure aluminum.
- the method according to the invention is particularly suitable for producing thixotropic aluminum alloys. In principle, however, all castable alloy systems can be processed.
- a vertical continuous casting plant 10 has a ring-shaped, internally cooled mold 12, the gap-shaped opening 14 of which is used to apply coolant 16 to the surface of the strand 18 emerging from the mold 12.
- Above the mold 12 there is an attachment 20 made of refractory, heat-insulating material to form a so-called hot-top.
- the liquid metal 22 is fed to the mold 12 via a trough 24.
- the strand 18 is continuously lowered by means of a start-up floor 26, which keeps the mold 12 closed until the start of casting.
- a vibration generator 28 with a vibration surface 30 dips into the liquid metal 22.
- the mechanical vibrations transmitted from the vibration surface 30 of the vibration generator 28 to the liquid metal 22 lead in the mushy zone 32 between the liquid metal 22 and the solidified strand 18 to the formation of globular cast grains and thus to the liquid-solid metal alloy phase with thixotropic properties.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Continuous Casting (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH4090/90A CH682402A5 (de) | 1990-12-21 | 1990-12-21 | Verfahren zum Herstellen einer Flüssig-Fest-Metallegierungsphase mit thixotropen Eigenschaften. |
| CH4090/90 | 1990-12-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0493318A1 true EP0493318A1 (fr) | 1992-07-01 |
Family
ID=4269640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP91810961A Withdrawn EP0493318A1 (fr) | 1990-12-21 | 1991-12-11 | Procédé de fabrication d'une composition métallique liquide-solide pour façonnage subséquent comme matériau à l'état thixotropique |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US5186236A (fr) |
| EP (1) | EP0493318A1 (fr) |
| CH (1) | CH682402A5 (fr) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0575796A1 (fr) * | 1992-06-10 | 1993-12-29 | NORSK HYDRO a.s. | Procédé de fabrication d'alliages de magnésium thixotropiques |
| WO2000044944A3 (fr) * | 1998-06-10 | 2000-11-16 | Suraltech Inc | Processus de production de compositions metalliques a grains fins et de formage d'articles de metaux semi-solides profiles |
| WO2006035133A1 (fr) * | 2004-09-24 | 2006-04-06 | Alcan Rhenalu | Produits en alliage d ' aluminium a haute tenacite et procede d ' elaboration |
Families Citing this family (35)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69327195T2 (de) * | 1992-01-13 | 2000-04-06 | Honda Giken Kogyo K.K. | Verfahren zum Giessen von Aluminiumlegierungen und Gusstücken |
| US5571346A (en) * | 1995-04-14 | 1996-11-05 | Northwest Aluminum Company | Casting, thermal transforming and semi-solid forming aluminum alloys |
| US5911843A (en) * | 1995-04-14 | 1999-06-15 | Northwest Aluminum Company | Casting, thermal transforming and semi-solid forming aluminum alloys |
| US5968292A (en) * | 1995-04-14 | 1999-10-19 | Northwest Aluminum | Casting thermal transforming and semi-solid forming aluminum alloys |
| JP3817786B2 (ja) | 1995-09-01 | 2006-09-06 | Ｔｋｊ株式会社 | 合金製品の製造方法及び装置 |
| US5887640A (en) | 1996-10-04 | 1999-03-30 | Semi-Solid Technologies Inc. | Apparatus and method for semi-solid material production |
| US5881796A (en) * | 1996-10-04 | 1999-03-16 | Semi-Solid Technologies Inc. | Apparatus and method for integrated semi-solid material production and casting |
| WO1998030346A1 (fr) * | 1997-01-09 | 1998-07-16 | Materials Research Corporation | Procede pour affiner la microstructure des metaux |
| IL120001A0 (en) * | 1997-01-13 | 1997-04-15 | Amt Ltd | Aluminum alloys and method for their production |
| US6474399B2 (en) | 1998-03-31 | 2002-11-05 | Takata Corporation | Injection molding method and apparatus with reduced piston leakage |
| US6540006B2 (en) | 1998-03-31 | 2003-04-01 | Takata Corporation | Method and apparatus for manufacturing metallic parts by fine die casting |
| US6135196A (en) * | 1998-03-31 | 2000-10-24 | Takata Corporation | Method and apparatus for manufacturing metallic parts by injection molding from the semi-solid state |
| US5983976A (en) * | 1998-03-31 | 1999-11-16 | Takata Corporation | Method and apparatus for manufacturing metallic parts by fine die casting |
| CN1115215C (zh) | 1998-07-24 | 2003-07-23 | 吉布斯压铸铝股份有限公司 | 半固态铸造的设备和方法 |
| US6666258B1 (en) | 2000-06-30 | 2003-12-23 | Takata Corporation | Method and apparatus for supplying melted material for injection molding |
| US6523601B1 (en) | 2001-08-31 | 2003-02-25 | Shlomo Hury | Method and apparatus for improving internal quality of continuously cast steel sections |
| US6742570B2 (en) | 2002-05-01 | 2004-06-01 | Takata Corporation | Injection molding method and apparatus with base mounted feeder |
| DE10233067A1 (de) * | 2002-07-19 | 2004-02-05 | Bühler AG | Umformung eines kristallisierbaren Materials im flüssigen oder pastösen Zustand |
| RU2230823C2 (ru) * | 2002-08-13 | 2004-06-20 | Открытое акционерное общество "АВИСМА титано-магниевый комбинат" | Способ модифицирования и литья сплавов цветных металлов и устройство для его осуществления |
| US6880614B2 (en) * | 2003-05-19 | 2005-04-19 | Takata Corporation | Vertical injection machine using three chambers |
| US6945310B2 (en) * | 2003-05-19 | 2005-09-20 | Takata Corporation | Method and apparatus for manufacturing metallic parts by die casting |
| US6951238B2 (en) * | 2003-05-19 | 2005-10-04 | Takata Corporation | Vertical injection machine using gravity feed |
| ES2378367T3 (es) * | 2008-03-05 | 2012-04-11 | Southwire Company | Sonda de ultrasonidos con capa protectora de niobio |
| JP2010247179A (ja) * | 2009-04-15 | 2010-11-04 | Sumitomo Light Metal Ind Ltd | アルミニウム合金鋳塊の製造方法及びアルミニウム合金鋳塊 |
| US8652397B2 (en) | 2010-04-09 | 2014-02-18 | Southwire Company | Ultrasonic device with integrated gas delivery system |
| PT2556176T (pt) | 2010-04-09 | 2020-05-12 | Southwire Co | Dispositivo ultrassónico com sistema integrado de entrega de gás |
| HUE045644T2 (hu) | 2013-11-18 | 2020-01-28 | Southwire Co Llc | Ultrahang szondák gázkimenetelekkel fémolvadék gáztalanítására |
| CN103909267B (zh) * | 2014-03-26 | 2015-11-04 | 浙江大学 | 基于超声振动的半固态金属粉末成形装置及成形方法 |
| PT3256275T (pt) * | 2015-02-09 | 2020-04-24 | Hans Tech Llc | Afinação de grão por ultrassons |
| US9993996B2 (en) | 2015-06-17 | 2018-06-12 | Deborah Duen Ling Chung | Thixotropic liquid-metal-based fluid and its use in making metal-based structures with or without a mold |
| US10233515B1 (en) | 2015-08-14 | 2019-03-19 | Southwire Company, Llc | Metal treatment station for use with ultrasonic degassing system |
| US9981310B2 (en) * | 2015-09-01 | 2018-05-29 | GM Global Technology Operations LLC | Degassing and microstructure refinement of shape casting aluminum alloys |
| CN114871418B (zh) | 2015-09-10 | 2025-01-10 | 南线有限责任公司 | 熔融金属处理装置、形成金属产品的方法、系统和铸造机 |
| RU2617078C1 (ru) * | 2015-10-13 | 2017-04-19 | Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт авиационных материалов" (ФГУП "ВИАМ") | Способ модифицирования магниевых сплавов |
| CN114273645B (zh) * | 2021-12-27 | 2024-03-29 | 山东康普锡威新材料科技有限公司 | 一种利用高频振动制备超细晶材料的方法 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR823995A (fr) * | 1936-07-08 | 1938-01-29 | Traitement des métaux et alliages | |
| DE687903C (de) * | 1936-02-25 | 1940-02-08 | Manfred Von Ardenne | und anderen Werkstoffen |
| DE933779C (de) * | 1952-02-08 | 1955-10-06 | Hugo Dr Seemann | Vorrichtung zum Stranggiessen |
| FR2375938A1 (fr) * | 1976-12-29 | 1978-07-28 | Langenecker Bertwin | Procede et dispositif pour le traitement du bain de fusion de metaux et alliages metalliques, pendant le refroidissement, a l'aide des ultrasons basse frequence |
| DE3405356A1 (de) * | 1984-02-15 | 1985-08-22 | Battelle-Institut E.V., 6000 Frankfurt | Verfahren und vorrichtung zur herstellung von formteilen aus dispersionslegierungen |
| US4564059A (en) * | 1981-06-13 | 1986-01-14 | Dobatkin Vladimir I | Method for continuous casting of light-alloy ingots |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS596735B2 (ja) * | 1978-09-28 | 1984-02-14 | 新日本製鐵株式会社 | 連続鋳造方法 |
| JPS5611134A (en) * | 1979-07-06 | 1981-02-04 | Nippon Steel Corp | Solidifying method for metal |
| JPS5684156A (en) * | 1979-12-11 | 1981-07-09 | Kawasaki Steel Corp | Continuous casting method of molten metal |
| JPS57154350A (en) * | 1981-03-19 | 1982-09-24 | Furukawa Electric Co Ltd:The | Continuous casting method for metal |
| JPS5956952A (ja) * | 1982-09-27 | 1984-04-02 | Furukawa Electric Co Ltd:The | 金属の連続鋳造方法 |
| SU1523250A1 (ru) * | 1988-04-11 | 1989-11-23 | Производственное Объединение "Зенит" | Способ получени отливок |
-
1990
- 1990-12-21 CH CH4090/90A patent/CH682402A5/de not_active IP Right Cessation
-
1991
- 1991-12-11 EP EP91810961A patent/EP0493318A1/fr not_active Withdrawn
- 1991-12-12 US US07/806,150 patent/US5186236A/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE687903C (de) * | 1936-02-25 | 1940-02-08 | Manfred Von Ardenne | und anderen Werkstoffen |
| FR823995A (fr) * | 1936-07-08 | 1938-01-29 | Traitement des métaux et alliages | |
| DE933779C (de) * | 1952-02-08 | 1955-10-06 | Hugo Dr Seemann | Vorrichtung zum Stranggiessen |
| FR2375938A1 (fr) * | 1976-12-29 | 1978-07-28 | Langenecker Bertwin | Procede et dispositif pour le traitement du bain de fusion de metaux et alliages metalliques, pendant le refroidissement, a l'aide des ultrasons basse frequence |
| US4564059A (en) * | 1981-06-13 | 1986-01-14 | Dobatkin Vladimir I | Method for continuous casting of light-alloy ingots |
| DE3405356A1 (de) * | 1984-02-15 | 1985-08-22 | Battelle-Institut E.V., 6000 Frankfurt | Verfahren und vorrichtung zur herstellung von formteilen aus dispersionslegierungen |
Non-Patent Citations (6)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN, Band 4, Nr. 88 (M-17)[570], 24. Juni 1980; & JP-A-55 45 558 (SHIN NIPPON SEITETSU) 31-03-1980 * |
| PATENT ABSTRACTS OF JAPAN, Band 5, Nr. 155 (M-90)[827], 30. September 1981; & JP-A-56 84 156 (KAWASAKI SEITETSU) 09-07-1981 * |
| PATENT ABSTRACTS OF JAPAN, Band 5, Nr. 57 (M-64)[729], 18. April 1981; & JP-A-56 11 134 (SHIN NIPPON SEITETSU) 04-02-1981 * |
| PATENT ABSTRACTS OF JAPAN, Band 6, Nr. 260 (M-180)[1138], 18. Dezember 1982; & JP-A-57 154 350 (FURUKAWA DENKI KOGYO) 24-09-1982 * |
| PATENT ABSTRACTS OF JAPAN, Band 8, Nr. 160 (M-312)[1597], 25. Juli 1984; & JP-A-59 56 952 (FURUKAWA DENKI KOGYO) 02-04-1984 * |
| SCIENCE ET VIE, Nr. 467, August 1956, Seiten 80-83; "Les générateurs d'ultrasons" * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0575796A1 (fr) * | 1992-06-10 | 1993-12-29 | NORSK HYDRO a.s. | Procédé de fabrication d'alliages de magnésium thixotropiques |
| WO2000044944A3 (fr) * | 1998-06-10 | 2000-11-16 | Suraltech Inc | Processus de production de compositions metalliques a grains fins et de formage d'articles de metaux semi-solides profiles |
| WO2006035133A1 (fr) * | 2004-09-24 | 2006-04-06 | Alcan Rhenalu | Produits en alliage d ' aluminium a haute tenacite et procede d ' elaboration |
| US7615125B2 (en) | 2004-09-24 | 2009-11-10 | Alcan Rhenalu | Aluminum alloy products with high toughness and production process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| US5186236A (en) | 1993-02-16 |
| CH682402A5 (de) | 1993-09-15 |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| AK | Designated contracting states |
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| 17P | Request for examination filed |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| 18D | Application deemed to be withdrawn |
Effective date: 19940630 |